Key findings from the special Quest Diagnostics 25th anniversary Drug Testing Index (DTI)includes data from more than 6.7 million tests:
- The positivity rate for the Combined U.S. Workforce declined 74%, from 13.6% in 1988 to 3.5% in 2012.
- The positivity rate for the Federally Mandated, Safety Sensitive Workforce declined by 38%, from 2.6% in 1992 to 1.6% in 2012.
- The positivity rate for the U.S. General Workforce declined by 60%, from 10.3% in 1992 to 4.1% in 2012.
Learn More – View the full report: Quest Diagnostics 25th Anniversary Drug Testing Index